TY - JOUR
AU - Wei, Wei
AB - Distance Vector-Hop (DV-Hop) is a classical range-free localization algorithm based on distance vector routing protocol in wireless sensor networks (WSNs). However, the traditional DV-Hop algorithm has limited positioning accuracy, and the connectivity and stability of the network is susceptible to the heterogeneity and density variation of the nodes, leading to a further increase in the positioning error. To address these issues, an enhanced DV-Hop localization algorithm based on hop distance correction and multi-strategy modified Aquila Optimizer (FGMAO) is proposed. Aquila Optimizer (AO) is a recently proposed metaheuristic algorithm, which plays a crucial role in the accurate positioning of nodes in WSNs. To obtain an Aquila Optimizer with better global optimization performance and robustness, a multi-strategy fusion approach is utilized to compensate for the shortcomings of the standard Aquila Optimizer with insufficient local exploitation capabilities. Numerical experiments on high-dimensional CEC2017 test functions demonstrate better optimization ability of the modified Aquila Optimizer. For the sensitivity of the DV-Hop algorithm to error accumulation, the similar path search method is employed to correct its average hop distance, making it more suitable for distance estimation to avoid error expansion. Finally, the global optimum that corresponds to the evaluated location of the goal node is obtained by utilizing the optimization characteristics of FGMAO instead of the least squares method. The simulation experimental solutions manifest that without the need for additional hardware, the error of the proposed localization algorithm is 8.1 to 18.2% lower than that of the other localization algorithms in the 2D scene. In the 3D scene, its error is 7.1 to 21.3% lower than that of the comparison algorithms.
TI - An enhanced DV-hop localization algorithm based on hop distance correction and multi-strategy modified Aquila Optimizer in HWSNs
JF - Cluster Computing
DO - 10.1007/s10586-024-04735-6
DA - 2025-04-01
UR - https://www.deepdyve.com/lp/springer-journals/an-enhanced-dv-hop-localization-algorithm-based-on-hop-distance-cvJQF0jdeu
VL - 28
IS - 2
DP - DeepDyve
ER -